The boss and co-founder of WhatsApp, jan koum, resigned.

WhatsApp chief executive jan koum will pull out of the popular messaging service he co-founded.
In an article posted on Facebook, he said he was “taking some time off to do things I enjoy outside of technology”.
However, the Washington post reported earlier Monday that Mr. Koum had clashed with Facebook, the parent company, through WhatsApp’s strategy.
He also opposes Facebook’s attempt to use WhatsApp’s personal data and undermine its encryption standards.
Mr Koum said in a statement: “since Brian [Acton] and I began to have WhatsApp for about ten years, for some of the best people, this is a amazing journey, but now it’s time for me to move on.
“The team is stronger than ever, and it continues to do amazing things… I’m still cheering for WhatsApp – just outside.”
Stanford alumni Brian Acton and Ukrainian immigrant Mr Koum co-founded WhatsApp in 2009 and sold it to Facebook for $19 billion (13.8 billion pounds) in 2014.
The two sides have long maintained the protection and independence of What WhatsApp user data is, and keep it as a condition for Facebook’s acquisition.
However, their relationship with Facebook has reportedly deteriorated recently.
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Reality check: the value of Facebook data “makes no sense”?Mr. Acton left the company in November and joined other former executives in criticizing Facebook. In march, he supported the #deletefacebook social media campaign, which took off after the Cambridge analysis of the company’s use of Facebook user data.
Facebook has since revealed that up to 87 million data and advisory bodies are not properly Shared and used for political purposes.
Both men are said to oppose Facebook’s efforts to commercialize WhatsApp, which has no advertising.
According to the Washington post, this includes Facebook plans to visit WhatsApp users’ phone Numbers and other data.
Since then, Facebook has been banned from using WhatsApp data from British citizens for purposes beyond the application itself.
Last year, the European Union was fined $122 million for “providing incorrect or misleading information” when it acquired WhatsApp.
Facebook CEO mark zuckerberg comments for Mr Qom post, said he was very thank Mr Qom teaches his ability to encrypt “and it get power from the central system and turn it back on the people in the hands of ability, the value will always be at the core. “WhatsApp.WhatsApp, which has 1.5 billion users a month, is the world’s largest text-messaging service.